I'm wondering, about this, as I'll be getting a 5.0 next week. I know the Samsung players I've had in the past did not support ReplayGain....so assuming that has continued, how well is Rockbox for Android running on the SGP?

Rockbox could solve the issue for me just fine....I'd rather not have to run anything I load on it through MP3Gain, like I had to with the Zune HD I had before.